package com.dingding.study.DTO;

import lombok.Data;
import lombok.ToString;

import java.util.List;
import java.util.Set;

/**
 * @program: spring-learning
 * @description:
 * @author: liugongding
 * @create: 2021-11-30 10:08
 **/

@Data
@ToString
public class Combo {
    private Set<String> combo;

    public static void main(String[] args) {
        List<String> list1 = null;
        for (String a : list1) {
            System.out.println(a);
        }
    }
}
